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10-03-2026 18:08

Marc Detollenaere Marc Detollenaere

Dear Forum,On stems of Arctium, I found some downy

05-03-2026 10:07

Hulda Caroline Holte

Hello, I found and collected this species growing

07-03-2026 13:06

éric ROMERO éric ROMERO

Bonjour tous, Sur cône d'épicea fortement imbu,

23-12-2025 08:27

Josep Torres Josep Torres

Hello.Small, yellowish ascomata, with very short a

28-02-2026 11:05

Yanick BOULANGER

Bonjour à tousLe 24/02/2026 à Montmacq, devant m

08-03-2026 14:05

Thierry Blondelle Thierry Blondelle

Bonjour à tous,Sur 3 récoltes supposées de H. l

07-03-2026 22:22

Josep Torres Josep Torres

Hello.Some very tiny conidiomes collected in the D

06-03-2026 17:51

William Slosse William Slosse

Good evening all,On March 4, 2026, I found the fol

05-03-2026 16:30

François Bartholomeeusen

Dear forum members, On the 2nd of February 2026,

06-03-2026 09:41

Alain GARDIENNET Alain GARDIENNET

Hi forum, I'm now looking for another reference c

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Diaporthales on Castanea sativa
Mathias Hass, 03-08-2023 13:31
Mathias Hass
Hi,

On attached dead twig of Castanea sativa. Found july, Gyngemosen near Copenhagen Denmark. Olivebrown conidia, valiable shape, ellipsoide, almond shaped, ellongated and even curved, 23,8 (18,0-29,5) x 9,6(7,1-11,5) my, Q=2,6. Coated with a thin 1 my mucilaginous sheet. Looks to me Melanconis-like, but cannot find any match on this host. Any ideas?
  • message #76672
  • message #76672
  • message #76672
Chris Yeates, 05-08-2023 16:00
Chris Yeates
Re : Diaporthales on Castanea sativa
Hi Mathias

Spore dimensions a bit different (possibly originally due to working on dried material), but you could try https://www.biodiversitylibrary.org/page/32873578#page/1223/mode/1up

Best wishes, Chris
Mathias Hass, 05-08-2023 23:12
Mathias Hass
Re : Diaporthales on Castanea sativa
Thanks a lot Chris. That is at least a good start.